Protected escape routes

Department for Communities and Local Government, (2019) Protected escape routes. In: Approved Document B: Fire Safety - Volume 1: Dwellings. 2019 ed. Section 8: Cavities – flats, 1 (8.5). RIBA Publishing Publication, London, p. 65. ISBN 9781859469156

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If the fire resisting construction of a protected escape route is either of the following.
a. Not carried to full storey height.
b. At the top storey, not carried to the underside of the roof covering.
Then the cavity above or below the fire resisting construction should be either of the following.
i. Fitted with cavity barriers on the line of the enclosure.
ii. For cavities above the fire resisting construction, enclosed on the lower side by a fire resisting ceiling (minimum EI 30) that extends throughout the building, compartment or separated part (see Diagram 8.3).

Item Type: Book Section
Additional Information: mml-maui-text-analytics-keywords
Uncontrolled Keywords: cavity barrier, cavity, escape route, fire protection, fire compartment, construction, fire resistance, storey, separated part, height
Subjects: Section 08: Cavities – flats
B3: Internal fire spread (structure)
Building standards
Date Deposited: 15 Feb 2020 05:52
Last Modified: 29 Sep 2022 21:02

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